Publications Portal

You searched on:
Author: balasubramanian muralikrishnan

Displaying records 11 to 20 of 26 records.
Resort by: Date / Title

11. Choosing test positions for laser tracker evaluation and future Standards development
Published: 7/15/2010
Authors: Balasubramanian Muralikrishnan, Daniel S Sawyer, Christopher J Blackburn, Steven David Phillips, Craig M Shakarji, Ed Morse, Robert Bridges
Abstract: A working group within the ISO TC 213 committee is developing a draft document [11] for evaluating the performance of laser trackers. The ASME B89.4.19 Standard [1] and the draft VDI/VDE 2617 part 10 [2] describe some useful tests that are incorporat ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905959

12. Performance Evaluation and Metrics for Perception in Intelligent Manufacturing
Published: 12/31/2009
Authors: Roger Diack Eastman, Tsai Hong Hong, Jane Shi, Tobias Hanning, Balasubramanian Muralikrishnan, S. Susan Young, Tommy Chang
Abstract: Real-time three-dimensional vision has been rapidly advancing over the past twenty years, leading to a number of successful laboratory demonstrations, including real-time visual servoing, autonomous vehicle navigation , and real-time people and vehic ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=902103

13. DIAMETER AND FORM MEASUREMENT OF A MICRO-HOLE IN A FUEL INJECTOR NOZZLE WITH THE NIST FIBER PROBE
Published: 11/2/2009
Authors: Balasubramanian Muralikrishnan, Jack A Stone Jr, John Richard Stoup
Abstract: We discuss the measurement of diameter and form of micro-holes with reverse tapers in a fuel injector nozzle using an ultra-low force contact fiber probe on a CMM. The fiber probe was designed and built at the National Institute of Standards and Tech ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=902815

14. Recent developments in large-scale dimensional metrology
Published: 7/30/2009
Authors: G Peggs, P.G Maropoulos, E.B Hughes, Alistair Forbes, S Robson, M Ziebart, Balasubramanian Muralikrishnan
Abstract: With ever-more demanding requirements for the accurate manufacture of large components, dimensional measuring techniques are becoming progressively more sophisticated. This review describes some of the more recently-developed techniques and the stat ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=824697

15. ASME B89.4.19 Performance Evaluation Tests and Geometric Misalignments in Laser Trackers
Published: 1/30/2009
Authors: Balasubramanian Muralikrishnan, Daniel S Sawyer, Christopher J Blackburn, Steven David Phillips, Bruce R. Borchardt, William Tyler Estler
Abstract: Small and unintended offsets, tilts, and eccentricity of the mechanical and optical components in laser trackers introduce systematic errors in the measured spherical coordinates (angles and range readings), and possibly in the calculated lengths of ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=824664

16. Performance Evaluation of Laser Trackers
Published: 9/15/2008
Authors: Balasubramanian Muralikrishnan, Daniel S Sawyer, Christopher J Blackburn, Steven David Phillips, Bruce R. Borchardt, William Tyler Estler
Abstract: The American Society for Mechanical Engineers (ASME) recently released the ASME B89.4.19 Standard [1] on performance evaluation of spherical coordinate instruments such as laser trackers. At the National Institute of Standards and Technology (NIST), ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=824702

17. Area Measurement of Knife Edge and Cylindrical Apertures using Ultra Low Force Contact Fiber Probe on a CMM
Published: 1/1/2008
Authors: Balasubramanian Muralikrishnan, Jack A Stone Jr, John Richard Stoup
Abstract: Several radiometric and photometric measurements depend on high accuracy area measurement of precision apertures. Some apertures have sharp edges and are generally measured optically. At the Precision Engineering Division (PED) of the National Instit ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=824632

18. Laser Tracker Testing at NIST Using the ASME B89.4.19 Standard
Published: 1/1/2007
Authors: Balasubramanian Muralikrishnan, Christopher J Blackburn, Daniel S Sawyer, Bruce R. Borchardt, William Tyler Estler, Steven David Phillips
Abstract: While the versatility and economics of laser trackers are quite appealing, the ability to assess their accuracy and to compare various brands has been limited by a lack of a national or international standard that encompasses testing and traceability ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=824608

19. Roundness Measurements Using the NIST Fiber Probe
Published: 1/1/2007
Authors: Balasubramanian Muralikrishnan, Jack A Stone Jr, John Richard Stoup
Abstract: We have described a fiber probe for dimensional measurement of micro-holes in the 2004 and 2006 ASPE annual meetings. In this abstract, we describe the adaptation of this probe for measuring roundness of tiny holes and knife edge apertures. In its cu ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=823241

20. Enhanced Capabilities of the NIST Fiber Probe for Microfeature Metrology
Published: 1/1/2006
Authors: Balasubramanian Muralikrishnan, Jack A Stone Jr, John Richard Stoup
Abstract: We have previously reported work in the area of fiber probe development at NIST for micro feature measurement. This probe, which we refer to as the Fiber Deflection Probe, functions by optically imaging the stem from two orthogonal directions a few m ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=823213